CN111649798A - Detection method, vehicle, detection device, and computer-readable storage medium - Google Patents
Detection method, vehicle, detection device, and computer-readable storage medium Download PDFInfo
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- CN111649798A CN111649798A CN202010612829.2A CN202010612829A CN111649798A CN 111649798 A CN111649798 A CN 111649798A CN 202010612829 A CN202010612829 A CN 202010612829A CN 111649798 A CN111649798 A CN 111649798A
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- fuel
- liquid level
- height
- level height
- resistance value
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/24—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K2015/0321—Fuel tanks characterised by special sensors, the mounting thereof
- B60K2015/03217—Fuel level sensors
Abstract
The invention provides a detection method, a vehicle, a detection device and a computer readable storage medium, wherein the detection method comprises the following steps: acquiring a resistance value of the liquid level sensing assembly; acquiring the fuel liquid level height according to the resistance value and the corresponding relation between the resistance value and the fuel liquid level height; and acquiring the residual fuel quantity according to the fuel liquid level height and the corresponding relation between the fuel liquid level height and the fuel quantity. The invention directly calculates the actual residual fuel quantity of the current fuel tank, and when the fuel tank and the liquid level sensing assembly are combined and applied to different vehicle types, the corresponding relation between the resistance value and the fuel liquid level height and the corresponding relation between the fuel liquid level height and the fuel quantity can be completely universal, and the universality is higher.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a detection method, a vehicle, a detection device and a computer-readable storage medium.
Background
The fuel quantity monitoring device commonly used for the vehicle at present is a float type liquid level sensor and an instrument displaying according to proportion, after the instrument receives a resistance value signal, the instrument displays the position proportion of the current float in the monitoring range of the sensor according to a real-time resistance value, the proportion displayed by the instrument is actually the height ratio in the monitoring range of the sensor, and the ratio of the height ratio to the actual residual fuel oil in the total capacity has great difference, so that inaccurate display is caused.
Disclosure of Invention
The present invention is directed to solving at least one of the above problems.
To this end, a first object of the present invention is to provide a detection method.
A second object of the present invention is to provide a vehicle.
A third object of the present invention is to provide a detection apparatus.
A fourth object of the present invention is to provide a computer-readable storage medium.
To achieve the first object of the present invention, an embodiment of the present invention provides a method for detecting a remaining fuel amount of a vehicle, including: acquiring a resistance value of the liquid level sensing assembly; acquiring the fuel liquid level height according to the resistance value and the corresponding relation between the resistance value and the fuel liquid level height; and acquiring the residual fuel quantity according to the fuel liquid level height and the corresponding relation between the fuel liquid level height and the fuel quantity.
The method directly measures and calculates the residual fuel quantity in the fuel tank instead of calculating the fuel consumption of the engine, the detection method calculates the actual residual fuel quantity of the current fuel tank, and when the fuel tank and the liquid level sensing assembly are applied to different vehicle types, the corresponding relation between the resistance value and the height of the fuel liquid level and the corresponding relation between the height of the fuel liquid level and the fuel quantity can be completely universal, so that the method of the embodiment has high universality and can be suitable for vehicles of different models.
In addition, the technical solution provided by the above embodiment of the present invention may further have the following additional technical features:
among the above-mentioned technical scheme, before carrying out the resistance value that obtains liquid level sensing subassembly, still include: acquiring a corresponding relation between a resistance value of a liquid level sensing assembly and a liquid level height, wherein the liquid level height is a first height of fuel oil between a zero position and a full position of the liquid level sensing assembly; acquiring a second height between the zero position of the liquid level sensing assembly and the bottom of the oil tank; summing the first height and the second height to obtain the height of the liquid level of the fuel oil; and acquiring the corresponding relation between the resistance value and the fuel liquid level height.
In this embodiment, the correspondence between the resistance value and the liquid level height of the liquid level sensing assembly between the zero position and the full position is obtained, and the liquid level height is the first height of the fuel in the detectable range between the zero position and the full position. The method comprises the steps of obtaining the height of an undetectable range between the zero position of the liquid level sensing assembly and an oil tank, namely the second height between the zero position of the liquid level sensing assembly and the bottom of the oil tank, correcting the height of the liquid level within the detectable range on the basis of the corresponding relation between the resistance value of the liquid level sensing assembly and the height of the liquid level within the detectable range, summing the second height of the undetectable range and the first height within the detectable range, further obtaining the real height of the fuel liquid level, replacing the first height with the height of the fuel liquid level, and further obtaining the corresponding relation between the resistance value of the liquid level sensing assembly and the height of the fuel liquid level. In the embodiment, the liquid level sensing assembly cannot detect the liquid level below the zero position, so that the detectable liquid level height is corrected, the accurate liquid level height of the fuel can be obtained, and the accuracy of the residual fuel amount obtained through final calculation is further ensured.
In any one of the above technical solutions, the corresponding relationship between the resistance value and the fuel level height includes: a table of values of resistance values versus fuel level heights, and/or a functional relationship of resistance values versus fuel level heights.
According to the precision requirement, a plurality of resistance values of the liquid level sensing assembly and the fuel liquid level height corresponding to the resistance values can be obtained, and a numerical value corresponding table of the resistance values and the fuel liquid level height is formed. Parameter fitting can be carried out according to the obtained table to obtain the functional relation between the resistance value and the fuel liquid level height.
In any one of the above technical solutions, before the execution of obtaining the resistance value of the liquid level sensing assembly, the method further includes: constructing a three-dimensional model of the oil tank; acquiring the fuel quantity contained in the fuel tank when the fuel level is at the height of each fuel level in the fuel tank according to the three-dimensional model; and acquiring the corresponding relation between the fuel liquid level height and the fuel quantity.
The specific situation of the oil tank is comprehensively considered in the embodiment, the size and the shape of the set oil tank are different for different vehicles, the actual cross sections of all liquid level heights of the oil tank are different, particularly the abnormal-shaped oil tank, the liquid level height variation is not equal to the variation of the residual fuel quantity, the accurate fuel quantity corresponding to the fuel liquid level height can be obtained by modeling the oil tank, and the influence of the shape of the oil tank is avoided.
In any one of the above technical solutions, the correspondence between the fuel level height and the fuel amount includes: a table of values of fuel level height versus fuel quantity, and/or a functional relationship of fuel level height versus fuel quantity.
According to the precision requirement, a plurality of fuel liquid level heights and fuel amount corresponding to the fuel liquid level heights can be obtained, and a numerical value corresponding table of the fuel liquid level heights and the fuel amount is formed. Parameter fitting can be carried out according to the obtained table to obtain the functional relation between the fuel liquid level height and the fuel quantity, or the functional relation between the fuel liquid level height and the fuel quantity is directly obtained through the constructed model of the fuel tank, and the functional relation between the fuel liquid level height and the fuel quantity is finally obtained through the functional relation between the fuel tank volume and the fuel quantity.
In any of the above technical solutions, the method for detecting the remaining fuel amount of the vehicle further includes: presetting the corresponding relation between the resistance value and the fuel liquid level height to an instrument program; presetting the corresponding relation between the fuel liquid level height and the fuel quantity to an instrument program; the meter program obtains the resistance value of the liquid level sensing assembly, and obtains the residual fuel quantity through the corresponding relation between the resistance value and the fuel liquid level height and the corresponding relation between the fuel liquid level height and the fuel quantity.
After the meter program receives the resistance value input by the liquid level sensing assembly, the meter program converts the resistance value into the fuel liquid level height through the preset corresponding relation, and then obtains the current residual fuel quantity according to the fuel liquid level height.
In any of the above technical solutions, the method for detecting the remaining fuel amount of the vehicle further includes: and displaying the representation value of the residual fuel quantity through the instrument assembly.
And displaying the specific numerical value and the accurate representation value of the residual fuel quantity through the instrument assembly.
To achieve the second object of the present invention, an embodiment of the present invention provides a vehicle including: the vehicle body comprises an oil tank and a liquid level sensing assembly, the liquid level sensing assembly is arranged in the oil tank, the detection device adopts the method for detecting the residual fuel quantity of the vehicle according to any embodiment of the invention, and the residual fuel quantity in the oil tank is obtained through the liquid level sensing assembly.
The steps of the method for detecting the vehicle remaining fuel amount according to any one of the embodiments of the present invention are implemented by the vehicle according to the embodiment of the present invention, so that the method has all the advantages of the method for detecting the vehicle remaining fuel amount according to any one of the embodiments of the present invention, and are not described herein again.
To achieve the third object of the present invention, an embodiment of the present invention provides a detection apparatus, including a memory storing a computer program; a processor executing a computer program; wherein the processor, when executing the computer program, implements the steps of the method for detecting a remaining fuel amount of a vehicle according to any one of the embodiments of the present invention.
The detection device provided by the embodiment of the invention realizes the steps of the method for detecting the residual fuel quantity of the vehicle according to any embodiment of the invention, so that the detection device has all the beneficial effects of the method for detecting the residual fuel quantity of the vehicle according to any embodiment of the invention, and the description is omitted.
To achieve the fourth object of the present invention, an embodiment of the present invention provides a computer-readable storage medium storing a computer program, which when executed, implements the steps of the method for detecting a remaining fuel amount of a vehicle of any of the above embodiments.
The computer-readable storage medium provided by the embodiment of the present invention implements the steps of the method for detecting the remaining fuel amount of the vehicle according to any embodiment of the present invention, so that the method has all the advantages of the method for detecting the remaining fuel amount of the vehicle according to any embodiment of the present invention, and details thereof are not repeated herein.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a related art apparatus;
FIG. 2 is a schematic diagram of a liquid level sensor and a fuel tank in the related art;
FIG. 3 is a flowchart illustrating a method for detecting a remaining fuel amount of a vehicle according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart illustrating a method for obtaining a correspondence between a resistance value and a fuel level height according to an embodiment of the present invention;
FIG. 5 is a schematic flow chart of a method for obtaining a correspondence between a fuel level and a fuel amount according to an embodiment of the present invention;
FIG. 6 is a flow chart of a method for detecting the remaining fuel quantity of a vehicle by a meter program according to an embodiment of the invention;
FIG. 7 is a flow chart illustrating a method for displaying a value indicative of a remaining fuel quantity via an instrumentation component according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a vehicle according to an embodiment of the present invention;
FIG. 9 is a schematic view of a vehicle body structure according to an embodiment of the present invention;
FIG. 10 is a schematic structural diagram of a detecting device according to an embodiment of the present invention;
FIG. 11 is a schematic view of a fuel tank and a level sensor according to an embodiment of the present invention;
fig. 12 is a flowchart illustrating a method for detecting a remaining fuel amount of a vehicle according to an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 2 is:
100': meter, 110': level sensor, 120': and an oil tank.
Wherein, the correspondence between the reference numbers and the part names in fig. 8 to 11 is:
100: vehicle, 110: vehicle body, 120: detection device, 122: memory, 124: processor, 130: oil tank, 140: liquid level sensing assembly, a: detectable segment, B: undetectable segment, D: second height, H: first height, L: liquid level, C: the bottom plane of the oil tank.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A detection method, a vehicle, a detection apparatus, and a computer-readable storage medium according to some embodiments of the present invention are described below with reference to fig. 1 to 12.
The fuel quantity monitoring device commonly used in the present engineering vehicle is a float-type liquid level sensor and a scale display instrument 100' as shown in fig. 1.
After the liquid level sensor 110 'receives a resistance value signal, the instrument 100' displays the position proportion of the current floater in the monitoring range of the liquid level sensor 110 'according to the real-time resistance value, so that the purpose of roughly measuring and calculating the residual fuel quantity is achieved, as shown in fig. 2, the detection range of the liquid level sensor 110' is from zero to full, the floater is in the middle, and the instrument displays 1/2; the float is at the monitorable range 1/4, then the meter displays 1/4, and so on, the lowest oil absorption level at the bottom of the level sensor 110 'is a certain distance away from the bottom of the oil tank 120', and this section is the non-monitorable range.
According to the scheme, the actual residual fuel quantity is not calculated, the specific value is not calculated according to the liquid level height display ratio, the fuel below the zero position (the liquid level below the zero position cannot be detected by the sensor) is not considered, the ratio displayed by the instrument is actually the height ratio in the detectable range of the sensor, the difference between the actual residual fuel and the ratio of the total capacity occupied by the actual residual fuel exists, the oil tank is not comprehensively considered, the actual cross section of each liquid level height of the oil tank is inconsistent, particularly the abnormal oil tank, and the liquid level height variation is not equal to the variation of the residual fuel quantity.
The method and the device for calculating the residual fuel quantity in the related art comprise the following steps: and acquiring the instantaneous oil consumption of the engine, performing integration processing according to the acquired instantaneous oil consumption of the engine to obtain an estimated value of the residual oil quantity of the oil tank, and outputting the estimated value of the residual fuel oil quantity of the oil tank. In the scheme in the related technology, the real-time residual fuel quantity in the oil tank is not directly calculated, but the fuel consumption of the vehicle engine is firstly calculated, and then the residual fuel quantity is obtained.
The method for measuring and calculating the residual fuel quantity of the embodiment is to calculate the residual fuel quantity through a fuel tank model and a measured actual height.
Example 1:
as shown in fig. 3, the present embodiment provides a method for detecting a remaining fuel amount of a vehicle, including the steps of:
step S102, acquiring a resistance value of the liquid level sensing assembly;
step S104, acquiring the fuel liquid level height according to the resistance value and the corresponding relation between the resistance value and the fuel liquid level height;
and S106, acquiring the residual fuel quantity according to the fuel liquid level height and the corresponding relation between the fuel liquid level height and the fuel quantity.
In this embodiment, the actual fuel level height is obtained according to the resistance value of the liquid level sensing assembly 140 and the corresponding relationship between the resistance value and the fuel level height, and then the remaining fuel amount in the fuel tank 130 is obtained according to the corresponding relationship between the fuel level height and the fuel amount, where the remaining fuel amount is an accurate value, so as to improve the accuracy of measuring and calculating the remaining fuel amount.
In the embodiment, the residual fuel quantity in the fuel tank 130 is directly measured and calculated, instead of calculating the fuel consumption of the engine, the actual residual fuel quantity of the current fuel tank 130 is calculated by the detection method, and when the fuel tank 130 and the liquid level sensing assembly 140 are applied to different vehicle types, the corresponding relation between the resistance value and the fuel liquid level height and the corresponding relation between the fuel liquid level height and the fuel quantity can be completely universal, so that the method of the embodiment has high universality and can be suitable for vehicles of different models.
Example 2:
as shown in fig. 4, in addition to the technical features of the above embodiment, the present embodiment further includes the following technical features:
before obtaining the resistance value of the liquid level sensing assembly, the method further comprises the following steps:
step S202, acquiring a corresponding relation between a resistance value of a liquid level sensing assembly and a liquid level height, wherein the liquid level height is a first height of fuel oil between a zero position and a full position of the liquid level sensing assembly;
step S204, acquiring a second height between the zero position of the liquid level sensing assembly and the bottom of the oil tank;
step S206, summing the first height and the second height to obtain a fuel liquid level height;
and step S208, acquiring the corresponding relation between the resistance value and the fuel liquid level height.
The level sensing assembly 140 may employ a level sensor.
The liquid level sensing assembly 140 is arranged in the oil tank 130, the bottom end of the liquid level sensing assembly 140 is away from the oil tank 130 by a certain distance, the bottom end of the liquid level sensing assembly 140 cannot be attached to the bottom end of the oil tank 130 tightly and is lower than the fuel oil with the lowest oil absorption liquid level, the liquid level sensing assembly 140 cannot identify the fuel oil, the liquid level sensing assembly 140 can only detect the liquid level height from zero position to full position, and the liquid level height from zero position to the bottom plane of the oil tank 130 cannot be detected, so that the liquid level sensing assembly 140 can be detected from zero position to full position, and the liquid level sensing assembly 140 can not be detected from zero position to the bottom. Because of the existence of the undetectable range, the liquid level height of the detectable range corresponding to the resistance value of the liquid level sensing assembly 140 does not correspond to the actual liquid level height in the oil tank 130.
For each liquid level sensing assembly 140, when leaving the factory, the liquid level sensing assembly 140 is provided with a corresponding relation between a zero position and a full position, a resistance value and a liquid level height, and the liquid level height refers to the liquid level height in a detectable range of the zero position and the full position.
In this embodiment, the second height of the undetectable range between the zero position of the liquid level sensing assembly 140 and the oil tank 130, that is, the height between the zero position of the liquid level sensing assembly and the bottom of the oil tank is obtained, the first height in the detectable range is corrected on the basis of the correspondence between the resistance value of the liquid level sensing assembly 140 and the liquid level height in the detectable range, the second height in the undetectable range and the first height in the detectable range are summed to obtain the true fuel liquid level height, the liquid level height is replaced by the fuel liquid level height, the correspondence between the resistance value of the liquid level sensing assembly 140 and the fuel liquid level height is obtained, the obtained fuel liquid level height is obtained according to the correspondence between the resistance value and the fuel liquid level height, and the fuel below the zero position of the liquid level sensing assembly 140 is considered.
In this embodiment, the liquid level sensing assembly 140 cannot detect the liquid level below the zero position, so that the detectable liquid level height is corrected to obtain the accurate liquid level height of the fuel, thereby ensuring the accuracy of the residual fuel amount obtained by final calculation.
Example 3:
in addition to the technical features of the above embodiment, the present embodiment further includes the following technical features:
the corresponding relation between the resistance value and the fuel liquid level height comprises the following steps: a table of values of resistance values versus fuel level heights, and/or a functional relationship of resistance values versus fuel level heights.
Specifically, according to the precision requirement, a plurality of resistance values of the liquid level sensing assembly 140 and the fuel level heights corresponding to the resistance values can be obtained, and a numerical value corresponding table of the resistance values and the fuel level heights is formed.
Parameter fitting can be performed according to the obtained table to obtain a functional relation between the resistance value and the fuel liquid level height, or when the corresponding relation between the resistance value and the liquid level height of the liquid level sensing assembly 140 is a linear function, a numerical value of the height between the zero position of the liquid level sensing assembly and the bottom of the fuel tank is added according to the linear function, so that the functional relation between the resistance value and the fuel liquid level height can be obtained.
Example 4:
as shown in fig. 5, in addition to the technical features of the above embodiment, the present embodiment further includes the following technical features:
before obtaining the resistance value of the liquid level sensing assembly, the method further comprises the following steps:
step S302, constructing a three-dimensional model of the oil tank;
step S304, acquiring the fuel quantity contained in the fuel tank when the fuel liquid level is at the height of each fuel liquid level in the fuel tank according to the three-dimensional model;
and S306, acquiring the corresponding relation between the fuel liquid level height and the fuel quantity.
A three-dimensional model of the fuel tank 130 is constructed by adopting Creo6.0 software, the fuel tank liquid level height of the fuel tank 130 and the corresponding fuel quantity contained in the fuel tank 130 are obtained according to the three-dimensional model, and then the corresponding relation between the fuel liquid level height and the fuel quantity is established.
The specific situation of the oil tank 130 is comprehensively considered in the embodiment, for different vehicles 100, the sizes and the shapes of the oil tank 130 are different, the actual cross sections of the liquid levels of the oil tank 130 are different, particularly, the oil tank is a special-shaped oil tank, the variation of the liquid level height is not equal to the variation of the residual fuel quantity, the accurate fuel quantity corresponding to the fuel liquid level height can be obtained by modeling the oil tank 130, and the influence of the shape of the oil tank 130 is avoided, in addition, for the oil tank 130, the residual fuel quantity is obtained by combining the fuel liquid level height, the fuel consumption calculation is not performed through an engine, and therefore the embodiment has certain universality in different vehicle types.
Example 5:
in addition to the technical features of the above embodiment, the present embodiment further includes the following technical features:
the corresponding relation between the fuel level height and the fuel quantity comprises the following steps: a table of values of fuel level height versus fuel quantity, and/or a functional relationship of fuel level height versus fuel quantity.
Specifically, according to the precision requirement, a plurality of fuel level heights and the fuel amount corresponding to the fuel level heights can be obtained, and a numerical value corresponding table of the fuel level heights and the fuel amount is formed.
Parameter fitting can be performed according to the obtained table to obtain a functional relation between the fuel level height and the fuel amount, or the functional relation between the volume of the fuel tank 130 corresponding to the fuel level height of the fuel tank 130 is directly obtained through a constructed model of the fuel tank 130, and the functional relation between the fuel level height and the fuel amount is finally obtained through the functional relation between the volume of the fuel tank 130 and the fuel amount.
Example 6:
as shown in fig. 6, in addition to the technical features of the above embodiment, the present embodiment further includes the following technical features:
the method for detecting the residual fuel quantity of the vehicle further comprises the following steps:
step S402, presetting the corresponding relation between the resistance value and the fuel level height to an instrument program;
step S404, presetting the corresponding relation between the fuel liquid level height and the fuel quantity to an instrument program;
and S406, acquiring the resistance value of the liquid level sensing assembly by the instrument program, and acquiring the residual fuel quantity according to the corresponding relation between the resistance value and the fuel liquid level height and the corresponding relation between the fuel liquid level height and the fuel quantity.
After the meter program receives the resistance value input by the liquid level sensing assembly 140, the meter program converts the resistance value into the actual liquid level height of the fuel through the preset corresponding relation, and then obtains the current residual fuel quantity according to the actual liquid level height.
The method for detecting the residual fuel quantity of the vehicle is realized through an instrument program, new hardware does not need to be added, and different vehicles can be conveniently applied.
Example 7:
as shown in fig. 7, in addition to the technical features of the above embodiment, the present embodiment further includes the following technical features:
the method for detecting the residual fuel quantity of the vehicle further comprises the following steps:
and step S502, displaying the representation value of the residual fuel quantity through the instrument assembly.
The characteristic value is a numerical value representing a specific representation form of the remaining fuel quantity, and the characteristic value of the remaining fuel quantity comprises: the specific value of the remaining fuel amount, or the ratio of the remaining fuel amount to the total fuel amount, etc., and the specific value of the remaining fuel amount may be the volume of the remaining fuel amount, etc.
Example 8:
as shown in fig. 8 and 9, the present embodiment provides a vehicle 100 including: the vehicle body 110 comprises a fuel tank 130 and a liquid level sensing assembly 140, the liquid level sensing assembly 140 is arranged in the fuel tank 130, and the detection device 120 adopts the method for detecting the residual fuel quantity of the vehicle according to any embodiment of the invention, and obtains the residual fuel quantity in the fuel tank 130 through the liquid level sensing assembly 140.
Example 9:
as shown in fig. 10, the present embodiment provides a detection apparatus 120, which includes a memory 122 storing a computer program; a processor 124 executing a computer program; wherein, the processor 124, when executing the computer program, implements the steps of the method for detecting the remaining fuel amount of the vehicle according to any embodiment of the present invention.
Example 10:
the present embodiment provides a computer-readable storage medium storing a computer program which, when executed, implements the steps of the method for detecting a remaining fuel amount of a vehicle according to any one of the above embodiments.
The specific embodiment is as follows:
the embodiment provides a method for detecting the residual fuel quantity of a vehicle, as shown in fig. 11, a liquid level sensor is adopted by a liquid level sensing assembly 140, the liquid level sensor is arranged in a fuel tank 130, a detectable section a is formed between the zero position and the full position of the liquid level sensor, an undetectable section B is formed between the zero position and the bottom plane C of the fuel tank, the height of the undetectable range is a second height D, the liquid level height of the liquid level sensor represents the liquid level height of a liquid level L in the detectable section of the liquid level sensor, namely a first height H, and the fuel liquid level height is the sum of the second height D and the first height H, wherein the liquid level sensor can only detect a liquid level signal in the detectable range and transmit a resistance value corresponding to the liquid level height (the first height H).
The method comprises the steps of calculating a 'functional relation between fuel liquid level height and fuel quantity' according to a model of a fuel oil tank 130, and a 'numerical value corresponding table of resistance value and fuel liquid level height' after a liquid level sensor (a liquid level sensing assembly 140) is assembled, wherein the table is arranged in an instrument program, real-time resistance value input after detection of the liquid level sensor is converted into actual fuel liquid level height in the instrument program through the built-in 'numerical value corresponding table of resistance value and fuel liquid level height', and then the current actual specific residual fuel quantity is calculated through the built-in 'functional relation between fuel liquid level height and fuel quantity'.
Specifically, for the oil tank 130 and the liquid level sensor shown in fig. 11, the method flow is shown in fig. 12, and includes the following steps:
step S602, a fuel tank model is constructed, and a functional relation between the fuel liquid level height and the fuel quantity is calculated according to the fuel tank model and written into an instrument program.
Specifically, the oil tank 130 is modeled by creo6.0 to obtain a functional relationship between the fuel level height and the fuel amount: 0.6287x-9.1263, where x represents fuel level height in millimeters (mm) and y represents fuel quantity in liters (L).
Step S604, after the oil tank and the liquid level sensor are assembled, guiding each resistance point and the corresponding actual liquid level height information, namely a 'numerical value corresponding table of the resistance value and the fuel liquid level height' into an instrument program;
specifically, a numerical value correspondence table between the resistance value of the liquid level sensor and the liquid level height (first height H) of the detectable section of the liquid level sensor is obtained, as shown in table 1.
TABLE 1 table of numerical values of resistance value and liquid level height
And acquiring a second height of an undetectable range in an undetectable section formed between the liquid level sensor and the bottom of the oil tank 130, wherein the value of the second height D is 18 mm.
And summing the value of each first height H and the second height D to obtain the height of the fuel liquid level.
A table of values for resistance and fuel level height is obtained, as shown in table 2.
TABLE 2 table of values of resistance and fuel level
The relationship between resistance and fuel level height (Table 2) is determined by two factors:
(1) the correspondence between the resistance value R preset by the level sensor and the detectable level height (first height H) (table 1).
(2) The tank, in combination with the level sensor, defines a second height D (18 mm in this example) of undetectable range.
Step S606, after the meter program receives the resistance value R of the current sensor, the current fuel level height is obtained according to the numerical value corresponding table of the resistance value and the fuel level height (table 2), and then the current specific remaining fuel quantity numerical value is calculated according to the functional relation between the fuel level height and the fuel quantity of the fuel tank model (table 1).
In this embodiment, the detection method is to calculate the actual remaining fuel amount of the current fuel tank 130, and when the fuel tank 130 and the liquid level sensor are applied to different vehicle types, all the built-in functions and the like can be completely used. The meter of the vehicle can increase the digital display mode to display the specific fuel residual quantity, for example, the volume of the residual fuel quantity and the like.
In summary, the embodiment of the invention has the following beneficial effects:
1. the embodiment can calculate the specific numerical value of the residual fuel quantity, and simultaneously can consider the fuel below the zero position, thereby greatly improving the measuring and calculating accuracy.
2. The present embodiment directly detects the amount of fuel remaining in the fuel tank 130, rather than calculating the amount of fuel consumed by the engine, and is highly versatile.
In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method of detecting a remaining fuel amount of a vehicle, characterized by comprising:
acquiring a resistance value of the liquid level sensing assembly;
acquiring the fuel liquid level height according to the resistance value and the corresponding relation between the resistance value and the fuel liquid level height;
and acquiring the residual fuel quantity according to the fuel liquid level height and the corresponding relation between the fuel liquid level height and the fuel quantity.
2. The method for detecting the residual fuel amount of the vehicle according to claim 1, wherein before the obtaining of the resistance value of the liquid level sensing assembly is performed, the method further comprises:
acquiring a corresponding relation between a resistance value of the liquid level sensing assembly and a liquid level height, wherein the liquid level height is a first height of fuel oil between a zero position and a full position of the liquid level sensing assembly;
acquiring a second height between the zero position of the liquid level sensing assembly and the bottom of the oil tank;
summing the first height and the second height to obtain the fuel liquid level height;
and acquiring the corresponding relation between the resistance value and the fuel liquid level height.
3. The method for detecting the residual fuel amount of the vehicle according to claim 2, wherein the correspondence between the resistance value and the fuel level height includes:
a table of values of said resistance value and said fuel level height, and/or
The resistance value is a function of the fuel level height.
4. The method for detecting the residual fuel amount of the vehicle according to claim 1, wherein before the obtaining of the resistance value of the liquid level sensing assembly is performed, the method further comprises:
constructing a three-dimensional model of the oil tank;
acquiring the fuel quantity contained in the fuel tank when the fuel liquid level is positioned at the height of each fuel liquid level in the fuel tank according to the three-dimensional model;
and acquiring the corresponding relation between the fuel liquid level height and the fuel quantity.
5. The method for detecting the residual fuel amount of the vehicle according to claim 4, wherein the correspondence relationship between the fuel level height and the fuel amount includes:
a table of values of said fuel level height and said fuel quantity, and/or
The fuel level height as a function of the fuel quantity.
6. The method of detecting a remaining fuel amount of a vehicle according to claim 1, characterized by further comprising:
presetting the corresponding relation between the resistance value and the fuel liquid level height to an instrument program;
presetting the corresponding relation between the fuel liquid level height and the fuel quantity to the instrument program;
and the meter program acquires the resistance value of the liquid level sensing assembly, and acquires the residual fuel quantity according to the corresponding relation between the resistance value and the fuel liquid level height and the corresponding relation between the fuel liquid level height and the fuel quantity.
7. The method of detecting a remaining fuel amount of a vehicle according to any one of claims 1 to 6, characterized by further comprising:
and displaying the representation value of the residual fuel quantity through an instrument assembly.
8. A vehicle (100), characterized by comprising:
a vehicle body (110) including a fuel tank (130) and a fluid level sensing assembly (140), the fluid level sensing assembly (140) being disposed within the fuel tank (130);
a detection device (120);
wherein the detection device (120) acquires the amount of fuel remaining in the fuel tank (130) through the level sensing assembly (140) by using the method for detecting the amount of fuel remaining in the vehicle according to any one of claims 1 to 7.
9. A detection device (120) comprising:
a memory (122) storing a computer program;
a processor (124) executing the computer program;
wherein the processor (124), when executing the computer program, carries out the steps of the method of detecting a vehicle remaining fuel amount according to any one of claims 1 to 7.
10. A computer-readable storage medium, comprising:
the computer-readable storage medium stores a computer program which, when executed, implements the steps of the method of detecting a vehicle remaining fuel amount according to any one of claims 1 to 7.
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